Patents Assigned to Johnson & Johnson Medical, Inc.
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Patent number: 6572819Abstract: A sterilization container for sterilizing, storing and transporting instruments is provided with a base portion having a plurality of drainage wells. Each drainage well has a downwardly sloping surface terminating in a drainage aperture. Upper portions of the sloping surfaces support a flexible instrument holding mat within the container. Sterilization containers are formed of thermoplastic liquid crystal polymer, such as a wholly aromatic polyester. A latch mechanism comprises a latch member rotatably supported upon torsion bars within a recessed portion of the container which presents no sharp surfaces to the user.Type: GrantFiled: June 28, 1996Date of Patent: June 3, 2003Assignee: Johnson & Johnson Medical, Inc.Inventors: Su-Syin Wu, Charles Howlett
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Patent number: 6379631Abstract: A sterilization container for sterilizing, storing and transporting instruments is formed of a liquid crystal polymer, such as a wholly aromatic polyester. The container is strong yet has thin walls so that condensation is minimized. Suitable polymers include wholly aromatic polyesters such as: polybenzoate-naphthalate; polybenzoate-terephthalate-bisphenol-isophthalate; polybenzoate-terephthalate-ethylene glycol; and polynaphthalate-amino terephthalate.Type: GrantFiled: June 28, 1996Date of Patent: April 30, 2002Assignee: Johnson & Johnson Medical, Inc.Inventor: Su-Syin Wu
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Patent number: 6326410Abstract: A wound dressing has a wound-contact layer formed from a polyurethane foam. The foam comprises one part by weight of the reaction product of an isocyanate-capped prepolymer with water (and optionally other hydroxy-functional compounds), and from 0.03 to 0.3 parts by weight of a natural or synthetic rubber. The isocyanate-capped prepolymer is preferably an isocyanate-capped ethyleneoxy/propyleneoxy copolymer, and the rubber is preferably an acrylic rubber.Type: GrantFiled: May 8, 1995Date of Patent: December 4, 2001Assignee: Johnson & Johnson Medical, Inc.Inventor: Catherine Louise Cheong
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Patent number: 6264902Abstract: A sterilization container for sterilizing, storing and transporting instruments is provided with a base portion having a plurality of drainage wells. The drainage wells comprise a downwardly sloping surface terminating in a drainage aperture. Upper portions of the sloping surfaces support a flexible instrument holding mat within the container. Sterilization containers are formed of thermoplastic liquid crystal polymer, such as a wholly aromatic polyester. A latch mechanism comprises a latch member rotatably supported upon torsion bars within a recessed portion of the container which presents no sharp surfaces to the user.Type: GrantFiled: June 28, 1996Date of Patent: July 24, 2001Assignee: Johnson & Johnson Medical, Inc.Inventor: Charles Howlett
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Patent number: 6218189Abstract: A method and apparatus detect exposure to an oxidation-type sterilant using a non-PH-sensitive bleachable dye as a chemical indicator. A change in color indicates exposure to oxidation-type sterilant.Type: GrantFiled: April 13, 1999Date of Patent: April 17, 2001Assignee: Johnson & Johnson Medical, Inc.Inventors: Patricia A. Antonoplos, Henry K. Hui, Alireza Ebrahim, Leslie A. Feldman, Nitu Kohli
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Patent number: 6213124Abstract: A surgical drape includes a sealable pouch to collect run-off from a surgical site. The pouch is open to receive fluid during a surgical procedure. When the procedure is completed, the pouch is sealed to prevent leakage of the fluid and to permit safe disposal of the contaminated drape. Preferably, the pouch is sealed with an interlocking ridge-and-channel structure of the type commonly used in food and sandwich bags.Type: GrantFiled: June 13, 1994Date of Patent: April 10, 2001Assignee: Johnson & Johnson Medical, Inc.Inventor: David E. Butterworth
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Patent number: 6203756Abstract: A method for cleaning and sterilizing a medical device comprises the steps of: a) placing the device into a container, b) cleaning the device with a cleaning solution, c) rinsing the device with rinse solution, d) treating the device with a liquid sterilant, e) vaporizing the liquid sterilant in the container thereby simultaneously sterilizing and drying the device, and providing a sterile, dry product without further rinsing. The method further comprises retaining a predetermined amount of the liquid sterilant in the container prior to step e). Step e) can be conducted under a diffusion restricted environment, or by reducing pressure to a first predetermined pressure followed by further reducing the first pressure to a predetermined second pressure, or at controlled pump down rate.Type: GrantFiled: December 17, 1997Date of Patent: March 20, 2001Assignee: Johnson & Johnson Medical, Inc.Inventors: Szu-Min Lin, Paul Taylor Jacobs
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Patent number: 6187265Abstract: An apparatus and method for sterilizing devices having contact areas with an antimicrobial fluid such as hydrogen peroxide. If the device is a lumen, the lumen is held in an adaptor which is connected with a vessel containing the antimicrobial fluid. The lumen, adaptor, and vessel containing the antimicrobial fluid are placed in a sterilization chamber. When the sterilization chamber is evacuated, the antimicrobial fluid in the vessel volatilizes, thereby sterilizing the interior of the lumen. The adaptor has one or more features which improve the sterilization of the areas of contact between the adaptor and the lumen. 1. The surface of the adaptor which is in contact with the lumen can be textured or uneven so as to reduce surface contact and enhance bidirectional diffusion of the sterilant. 2. The adaptor can be made of a material which has minimal chemical and physical interaction with the sterilant. 3.Type: GrantFiled: August 27, 1999Date of Patent: February 13, 2001Assignee: Johnson & Johnson Medical, Inc.Inventors: Su-Syin S. Wu, Nancy S. Chu
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Patent number: 6187266Abstract: A method for cleaning and sterilizing a medical device having a lumen with at least two open ends comprises the steps of: a) providing a container having at least one enclosure separated from the container by an interface, b) placing the device into the container and enclosure across the interface in such a way that one end of the lumen of the device is located in the container and the other end in the enclosure, c) generating a flow of a cleaning solution through the lumen to clean the inner surface of the lumen, d) generating a flow of rinse solution through the lumen to rinse the inner surface of the lumen, e) treating the device with a liquid sterilant, f) vaporizing the liquid sterilant in the container or enclosure thereby simultaneously sterilizing and drying the device, and providing a sterile, dry product without further rinsing.Type: GrantFiled: December 17, 1997Date of Patent: February 13, 2001Assignee: Johnson & Johnson Medical, Inc.Inventors: Szu-Min Lin, Paul Taylor Jacobs
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Patent number: 6167731Abstract: A novel method of fabricating surgical gowns basically comprises the steps of fabricating main body robe portions for the gowns, each having a pair of arm sleeves terminating at respective wrist openings, knitting on a circular knitting machine a plurality of discreet individual annular cuff blanks for the gowns, and affixing, e.g., by sewing, one cuff blank to each sleeve of each robe portion in surrounding relation to the sleeve's wrist: openings. According to the invention, each cuff blank is knitted to have an annular main cuff body portion entirely of a single ply knitted construction, with an annular turned welt integrally knitted with one end of the cuff body. The material and fabrication costs associated with disposable surgical gowns and like medical garments may thereby be significantly reduced.Type: GrantFiled: May 17, 1995Date of Patent: January 2, 2001Assignee: Johnson & Johnson Medical, Inc.Inventors: Francisco G. Lopez, Roscoe M. Farrell, Melvin Euliss
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Patent number: 6145687Abstract: A medical instrument sterilization container (10) is provided which includes a port (18). A removable filter (32) is received within port (18) to enable sterilization of instruments placed within container (10). A removable plug (48) replaces filter (32) to enable container (10) to be used to transport instruments without leaking of fluids therefrom.Type: GrantFiled: June 22, 1999Date of Patent: November 14, 2000Assignee: Johnson & Johnson Medical, Inc.Inventors: Robert L. Nichols, William H. Patterson, Keith F. Lindsey
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Patent number: 6123958Abstract: The present invention provides a dressing consisting of a non-reinforced, apertured gel web, wherein the gel is substantially anhydrous and comprises a water-soluble, polysaccharide- or cellulosic-polymer and a humectant, for use in treating burns. The present invention also provides a method for making the dressing.Type: GrantFiled: December 9, 1997Date of Patent: September 26, 2000Assignee: Johnson & Johnson Medical, Inc.Inventors: Catherine L. Cheong, Michelle Delbono
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Patent number: 6106855Abstract: Stable oil-in-water emulsions are prepared by mixing oil, water and an insoluble protein at high shear. By varying the amount of insoluble protein the emulsions may be made liquid, semisolid or solid. The preferred insoluble proteins are insoluble fibrous proteins such as collagen. The emulsions may be medicated with hydrophilic or hydrophobic pharmacologically active agents and are useful as or in wound dressings or ointments.Type: GrantFiled: March 22, 1993Date of Patent: August 22, 2000Assignee: Johnson & Johnson Medical, Inc.Inventors: Carla A. Haynes, Wilson Harvey
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Patent number: 6096012Abstract: A one-piece or unitarily constructed composite plastic catheter and cannula arrangement and method of producing the arrangement, having a suitably coated needle point which is thereby facilitated for insertion thereof into the vein or body of a patient, whereby the arrangement of an inexpensively produced construction renders the composite catheter and cannula structure of a nature adapted to be readily disposable after only a single use and therefore economically viable, especially for undeveloped or developing countries or regions.Type: GrantFiled: August 27, 1996Date of Patent: August 1, 2000Assignee: Johnson & Johnson Medical, Inc.Inventors: David L. Bogert, Zino Altman
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Patent number: 6067731Abstract: A novel shoe cover for medical uses comprises a one piece unit of thin elastomeric material having a pair of side panels in substantially parallel relation to each other. Each of the side panels has a foot shaped portion, an ankle shaped portion and an outer perimetric edge. A bead shaped perimetric section joins the two side panels at their respective perimetric edges, except at an upper edge of the ankle portions. A traction enhancing embossed pattern is formed on a lower portion of the foot shaped portion of the side panels. A novel method for forming the shoe cover comprises providing a shoe cover form which has substantially parallel lateral sides and a peripheral edge thereabout, which comprises a foot forming portion and an ankle forming portion, which has recesses covering substantially all of the foot forming portion of the first and second sides, and which has a textured surface on a lower portion of the foot forming portion.Type: GrantFiled: February 24, 1999Date of Patent: May 30, 2000Assignee: Johnson & Johnson Medical, Inc.Inventors: Mao-Ching Chen, Leslie Edward Blackford
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Patent number: 6059771Abstract: The present invention relates to a stiffening member, which is a stylet, that helps increase the fluid flow area within a catheter. In a preferred embodiment, the stylet is made of a single piece of flat rectangular stock that can be twisted to provide equal rigidity in all directions. A cross-section of the stylet reveals that the substantially flat rectangular shape of the stylet permits maximum fluid flow between the stylet and the catheter. This results in increased ease in manipulating and removing the stylet from the catheter. In addition, because the preferred embodiment of the stylet comprises a single element, it is easier to manufacture and should result in lower manufacturing costs. Moreover, the use of the present invention should also result in lower overall health-care costs.Type: GrantFiled: December 23, 1996Date of Patent: May 9, 2000Assignee: Johnson & Johnson Medical, Inc.Inventors: Daniel J. Balbierz, Robert Bley
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Patent number: 6050967Abstract: Visual indication of compressive force applied by a compression bandage is provided by forming a continuous pattern of repeated geometric shapes in the bandage strip with indicator yarn. The continuous pattern is formed so that the shape of each geometric design is changed when tension is applied to the bandage and the shape of the deformed pattern is indicative of compression force applied.Type: GrantFiled: November 16, 1998Date of Patent: April 18, 2000Assignees: Avcor Health Care Products, Inc., Johnson & Johnson Medical, Inc.Inventors: Marshall H. Walker, Fred M. Trainor, George P. Hansen
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Patent number: 6048485Abstract: A process for forming a catheter tip is described wherein a mold having an internal surface complimentary to the desired external surface of the catheter tip is formed such that it has two temperature zones. A first higher temperature zone is positioned proximally of the catheter distal tip and a lower temperature zone is positioned distal to the higher temperature zone. A catheter to be tipped is placed upon a mandrel or needle and the mold is heated. Upon insertion of the catheter and mandrel into the mold. The catheter material softens and begins to flow within the mold. The higher temperature portion supplies the heat necessary to soften the catheter material and it flow to the lower temperature zone wherein the lower temperature causes the catheter material to become more viscous or resolidify. Upon becoming more viscous, the catheter material, at the very tip, acts as a dam to prevent further flow of material thus eliminating flash from the mold end.Type: GrantFiled: December 13, 1996Date of Patent: April 11, 2000Assignee: Johnson & Johnson Medical, Inc.Inventors: J. Douglas Field, Roger Ahlstrom
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Patent number: D422363Type: GrantFiled: May 8, 1997Date of Patent: April 4, 2000Assignees: Avcor Health Care Products, Inc., Johnson & Johnson Medical, Inc.Inventors: Marshall H. Walker, Fred M. Trainor, George P. Hansen
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Patent number: D422708Type: GrantFiled: August 3, 1998Date of Patent: April 11, 2000Assignees: Avcor Health Care Products, Inc., Johnson & Johnson Medical, Inc.Inventors: Marshall H. Walker, Fred M. Trainor, George P. Hansen